Products Description
5800 Chainsaw Oil Sump / Oil Tank – Replacement Lubricant Reservoir
Direct Replacement Oil Tank for 5800 Series 58cc Chainsaws
The oil sump (oil tank) is a critical component of the 5800 chainsaw's automatic chain lubrication system, storing the bar and chain oil that is continuously delivered to the guide bar during operation . This replacement oil tank is designed specifically for Chinese 5800 series chainsaws with 58cc 2-stroke engines, including models from brands such as Bison, Texas Equipment (CSZ 5800), and other compatible clone saws . The transparent or semi-transparent tank body enables clear oil level monitoring, preventing dry operation that can cause extensive damage to the chain, guide bar, and oil pump . Built from durable, oil-resistant plastic, this direct-fit component restores proper lubrication function when the original tank is cracked, leaking, or damaged.
Technical Profiles & Materials
Direct OEM Replacement Fitment – Specifically designed for Chinese 5800 series chainsaws with 58cc 2-stroke engines. Compatible with models including Bison 5800, Texas Equipment CSZ 5800, Nosimon RK5800, and other clone saws .
Automatic Lubrication Compatibility – Works with the saw's automatic oiling system, which delivers chain oil through the oil outlet during operation . The system is activated when the engine runs, ensuring consistent lubrication throughout the cut.
Transparent Oil Level Monitoring – The translucent tank body (typically 260ml capacity) allows users to easily check oil levels and ensure the reservoir is sufficiently filled before operation .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Compatibility | 5800 series 58cc chainsaws |
| 2 | Oil Tank Capacity | Approx. 260ml – 350ml |
| 3 | Material | Oil-resistant plastic/polymer |
| 4 | Recommended Oil | ALCO SAE 30 or similar viscosity 120 |
| 5 | Lubrication Type | Automatic chain lubrication system |
| 6 | Breather System | Small breather channels in filler cap |
| 7 | Installation | Direct replacement (drop-in fit) |
| 8 | Unit of Sale | 1 piece |
Products Application
Oil Tank Crack or Leak Repair
Direct replacement when the original oil sump develops cracks or leaks from impact damage, aging, or exposure to harsh chemicals. A damaged tank causes oil loss, leading to insufficient chain lubrication and accelerated bar and chain wear .
Chainsaw Restoration & Overhaul
Essential component when rebuilding or restoring a 5800 series saw. Replacing a degraded or contaminated oil tank ensures the lubrication system operates correctly, extending the service life of the chain and guide bar .
Preventative Maintenance
For high-hour 5800 saws used in professional or heavy-duty applications, the oil tank should be inspected regularly for signs of wear, cracks, or oil leakage. The venting channels in the cap should also be checked to ensure they are clear .
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: How do I confirm this oil sump fits my 5800 chainsaw?
A:Check your chainsaw model number on the housing. This oil tank is designed for Chinese 5800 series chainsaws with 58cc 2-stroke engines. Verify your oil tank capacity matches (260ml is standard for most 5800 models) .
Q: What oil should I use in the 5800 oil tank?
A: Use only recommended chain oil (ALCO SAE 30 or similar with viscosity 120) . Never use recycled or old oil, as this can cause damage to the oil pump and invalidate the warranty . Check the oil level before starting and regularly during operation.
Q: Why does the oil run out even when the tank is full?
A: The automatic lubrication system is engine-driven – oil is only delivered when the chain is spinning . Ensure the saw is running at operating speed and check for blockages in the oil outlet, guide bar groove, and oil holes. If oil continues to leak when the saw is not running, the breather channels may be blocked or the tank seal damaged .
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